/Engine/Plugins/Runtime/GameplayAbilities/Source/GameplayAbilities/Public/AbilitySystemComponent.h
Replicates to the server that targeting has been cancelled
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(Server, Reliable, WithValidation) void ServerSetReplicatedTargetDataCancelled ( [FGameplayAbilitySpecHandle](API\Plugins\GameplayAbilities\FGameplayAbilitySpecHandle) AbilityHandle, [FPredictionKey](API\Plugins\GameplayAbilities\FPredictionKey) AbilityOriginalPredictionKey, [FPredictionKey](API\Plugins\GameplayAbilities\FPredictionKey) CurrentPredictionKey )